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Shingled Magnetic Recording (SMR) Technology is a new promising disk technology, which enables high areal density for disk storage by adopting writing tracks in an overlapped manner. Due to track overlapping, however, SMR devices cannot support in-place updates on shingled disk tracks, as overwriting shingled tracks would damage previously written data on neighboring tracks, resulting in poor random...
Multi-rate (MR) simulation is necessary for a system which contains both large and small time constraints. In the traditional MR real-time simulation of MMC, only the MMC valves are implemented on FPGA with a small time-step, while the rest parts are implemented on central processing units (CPU) with a large time-step. This paper presents a fully FPGA based MR real-time simulation of two MMC terminals...
Real-time simulation is an important tool of validating the performance of the modular multilevel converter (MMC). By using the field programmable gates array (FPGA), MMC valves with hundreds of sub-modules and the large number of inputs and outputs can be simulated in real-time. In the traditional FPGA based real-time simulation, only the MMC valves are implemented on FPGA, while the rest parts including...
Aimed at the high requirements of real-time in barrage video system, a barrage distribution strategy based on the earliest deadline first algorithm is proposed in this paper, which distributes all the barrages in the system to balance the best of the barrage completion rate and the completion rate of important barrages. The system will assign dynamic priority level to each new arrival barrage, and...
As the device size shrinks beyond 45nm technology node, logic BEOL (back end of line) started adopting Cu/Ultra low k (ULK) to reduce RC delay. With the introduction of low k material, IMD TDDB is notably degraded as numerous publications reported. The impact of ULK material deposition process, barrier layer deposition process on TDDB performance were investigated and discussed in-depth in this paper...
The performance of high-speed motorized spindle will directly affect the overall performance of high-speed machine tools, such as machining precision, processing strength and efficiency, vibration and noise, lifetime and so on. As one of the key R&D items of the motorized spindle design, motor control system is a nonlinear and strong coupling system. Based on the analysis of the control system...
Pattern recognition techniques have been widely used in security-sensitive applications to distinguish malicious samples from legitimate ones. However, there usually exist some intelligent attackers who intend to have malicious samples to be mis-classified as legitimate at test time, i.e. evasion attack. Current researches show that traditional Support Vector Machines (SVMs) are vulnerable to evasion...
Live Virtual Machine (VM) migration offers a couple of benefits to cloud providers and users, but it is limited within a data center. With the development of cloud computing and the cooperation between data centers, live VM migration is also desired across data centers. Based on a detailed analysis of VM deployment models and the nature of VM image data, we design and implement a new migration framework...
Based on the intra-body communication by galvanic coupling, this paper aimed to explore the impact on the signal transmission in the human body when the muscles were under the stress, and investigated the channel characteristics of different transmission distance and different grip size of the human arm. The results showed that, in the short-distance channel, the stressed muscles hindered the signal...
The detection of protein complexes from protein-protein interaction (PPI) networks is an important step toward understanding the functional organization within cells. A great number of graph clustering algorithms have been proposed to undertake this task. Since PPI data collected by high-throughput technologies is quite noisy, simply applying graph clustering algorithms on PPI data is generally not...
Extracting information about saline soils from remote sensing data can be useful, particularly given the environmental significance and changing nature of these soils in arid environments. One interesting case study is the delta oasis of the Ugan and Kuqa rivers in China’s Xinjiang region, which was studied using a landsat enhanced thematic mapper plus (ETM+) image collected in August 2001. In recent...
In this paper, A test bench system used in the test of UAV is put forward. The system is consisted of four parts which includes bearing part of UAV, ground support position, transmission mechanism and measuring weight parts. Bearing part of UAV is used for placing the object to be measured which is connected to one end of the drive mechanism through the connecting shaft, The other end of the drive...
In this paper, the driving cycle for electric cars on Beijing urban ways and suburban ways were respectively built. Further, the comprehensive comparison with the world typical driving cycles and in-depth analysis were taken. Firstly, the final driving cycles were obtained by the related data analysis methods after the road experiment by a reasonable scheme. Secondly, the final driving cycles were...
Live Virtual Machine (VM) migration across data centers is an important support technology which will bring benefits to both cloud providers and users. At present, VM storage migration becomes the bottleneck of this technology as it explores only the static data feature of image files without much consideration on data semantics. In this paper, we propose a new space-efficient VM image structure–three-layer...
CMI equipment support is the overall trend in the United States. This paper will summarize the development history of the U. S. military CMI equipment support, discuss the basic model of U. S. CMI equipment support, compare the series of reform measures conducted by the United States from five distinctive aspects with that of China. Based on China's military reform and institutional adjustment of...
Experiments of digital circuit are essential to this course. Traditional experiments can not meet the actual need of students, which is doing experiments anytime and anywhere. HTML5 makes the Web applications more and more flexible. In this paper, we designed and implemented a virtual laboratory base on HTML5. In this system, all the electronic components are virtualized into Javascript components...
Collaborative Filtering (CF) recommender systems have been widely used in many applications due to its satisfying performance in personalized recommendation. Recent studies show that a CF recommender system is vulnerable to shilling attacks in which shilling profiles are injected into a system by an adversary. Many attack detection methods have been proposed to defense against shilling attacks. Unsupervised...
This paper presents a neural adaptive controller for a class of nonlinear system in the presence of input saturation and arbitrary unknown information by integrating the design framework of neural networks (NNs) with the dynamic surface control (DSC) and backstepping technique. NNs are directly used to deal with unknown nonlinear terms. By introducing a well-defined smooth function and a Nussbaum...
In this paper, we propose a novel framework for multi-objects tracking on solving two kind of challenges. One is how to discriminate different targets with similar appearance, the other is distinct the single target with serious variation over time. The proposed framework extracts discriminative appearance information of different objects from historical recordings of all tracked targets by a label...
Tracking target in a long-term is still a big challenge in computer vision. In recent research, many researchers pay much attention on updating current appearance of tracking target to build one online appearance model. However, one appearance model is always not enough to describe historical appearance information especially for long-term tracking task. In this paper, we propose an online multiple...
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